The importance of manufacturing of hydrogen fuel tanks due to the application of hydrogen fuels in clean and recyclable energy is one of the most important issues of substituting the petroleum fuels. They consist of two main parts: Plastic liner, as a barrier escape of hydrogen and Carbon Fiber Reinforced Polymer (CFRP) layer to strengthen tanks. The liner plastic could be manufactured by rotational molding or blow molding. In rotational molding, the metallic boss embedded into the mold directly and stick on the polymer before wrapping step. However, in blow molding, the metallic boss is welded to liner polymer. By comparing these two methods, rotational molding demonstrates better feedback because of its capability in assembling boss and liner part, and also manufacturing the piece simultaneously, without the defect arising from welding. Moreover, improvement in the adhesion capacity of polymer to metal could be obtained by effective surface treatments. Therefore, good knowledge of adhesion concept could be useful in these regards. In this work, the possible treatments on Aluminum (metal) and medium density polyethylene (liner) which could be applied in rotational molding is proposed and the adhesion behavior of them has been compared. These surface treatments are anodizing, flaming, sandblasting with different average size of sand particles, and coating with polyethylene grafted (PEG) (CEA patent n°FR3035173). Despite of the mechanical test results, it was found that the sandblasting treatment (with higher roughness value) combined with PEG coating performed higher adhesion at the interface of metal/polymer in compare with other possible methods in rotational molding. Microstructures of these different surface treatments confirmed the obtained mechanical results.

由于将氢燃料用于清洁和可循环能源中，因此制造氢燃料箱的重要性是替代石油燃料的最重要问题之一。它们由两个主要部分组成：塑料衬里（作为氢的屏障逸出物）和碳纤维增强聚合物（CFRP）层，用于加固储罐。衬里塑料可以通过旋转模塑或吹塑来制造。在旋转成型中，金属凸台直接嵌入模具中，并在缠绕步骤之前粘在聚合物上。但是，在吹塑中，金属凸台被焊接到衬里聚合物上。通过比较这两种方法，滚塑成型具有更好的反馈效果，因为它具有装配凸台和衬套零件的能力，并且还可以同时制造零件，而不会产生焊接引起的缺陷。此外，通过有效的表面处理可以提高聚合物对金属的粘附能力。因此，在这些方面，对粘合概念的充分了解可能会很有用。在这项工作中，提出了可用于滚塑的铝（金属）和中密度聚乙烯（衬里）可能的处理方法，并比较了它们的粘附性能。这些表面处理包括阳极氧化，燃烧，用不同平均尺寸的沙粒喷砂以及用聚乙烯接枝（PEG）涂层（CEA专利号FR3035173）。尽管有机械测试结果，但发现与旋转模塑中的其他可能方法相比，喷砂处理（具有较高的粗糙度值）与PEG涂层相结合，在金属/聚合物界面上的附着力更高。